1 The LLC must pay a fee if the California total income is equal to or greater than $250,000. 2  The LLC must estimate the fee it will owe for the year and make an estimated fee payment. 3  See Estimated Payments below.
Ligand Definition. A ligand is an atom, ion, or molecule that donates or shares one or more of its electrons through a covalent bond with a central atom or ion. It is a complexing group in coordination chemistry that stabilizes the central atom and determines it reactivity.
A ligand that can form two bonds to a metal ion is called a bi-dentate ligand. A ligand donates an electron pair to an empty orbital on a metal ion, the formation of a metal-ligand bond can be described as the interaction between a Lewis base and a Lewis acid.This is often called a coordinate covalent bond. The atom, ion or molecule which is attached to the central metal atom is called ligand.he word ligand is derived from the Latin word 'ligare' which means to 'bind' . A ligand is a specific signal-including molecule, such as an inhibitor, activator, substrate or neurotransmitter that binds to macromolecules such as proteins irreversibly through intermolecular forces.